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Neuburg Castle Ruins
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The Neuburg Castle ruins tower high above the Untersee near Mammern in the Canton of Thurgau and are considered the largest castle ruins in the canton. It was built around 1250 by the Barons of Neuburg, who administered the surrounding land as a fief of the Reichenau Abbey. The extensive complex consisted of a core castle with a palas and a massive keep, complemented by a spacious outer bailey, highlighting the owners' defensiveness and status. Over the centuries, the castle changed hands several times, eventually coming into the possession of the Bishopric of Constance. In the 18th century, the site was finally abandoned and fell into ruin until it was secured with public funds in the 20th century. The ruin is now a popular destination for hikers, offering not only historical insights into medieval fortress architecture but also an impressive panoramic view over Lake Constance and the surrounding countryside.
- Location: Switzerland
- Top sights: Rugelreise Kugelautomat · Burgstelle Murkhart · art-insect
- Nearby: Aadorf (5 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -1 | 0 | 4 | 9 | 13 | 17 | 19 | 18 | 14 | 10 | 4 | 0 |
| Rain mm | 94 | 74 | 92 | 91 | 141 | 139 | 144 | 146 | 103 | 100 | 87 | 102 |
📋 Practical info
Visiting
The Neuburg ruins near Mammern are freely accessible and can be visited at any time. They sit on a hill above Lake Untersee and offer a beautiful view.
Typical hours
As an open ruin, there are no visiting hours - it is accessible year-round. In wet weather, the paths may be slippery.
Photography
Photography is allowed throughout the ruin site. The best view over Lake Untersee and the surrounding landscape is from the upper wall of the ruin.
Time needed
A visit to the ruins usually takes 20-30 minutes. Allow extra time for the climb and to enjoy the view.
Combine with
Combine the ruins with a walk along the shore of Lake Untersee or a visit to the pretty municipality of Mammern. A boat trip on Lake Constance is also recommended.
Getting there
The ruins are a 15-minute walk from the center of Mammern. Follow the hiking signs to Neuburg; parking is available at the village entrance.
Insider tip
Visit the ruins in the late afternoon when the light falls beautifully on the lake. Bring binoculars to watch the birds on Lake Untersee.
Geography
Facts
- The Neuburg is the largest castle ruin in terms of area in the Canton of Thurgau.
- The complex was founded around 1250 by the Barons of Neuburg.
- The massive keep originally consisted of five floors.
- In 1348, the castle was partially damaged during a regional feud.
- The ruin is located at an altitude of 560 meters above sea level.
- Extensive preservation work took place between 1934 and 1936.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Neuburg Castle Ruins (10)
Burgstelle Holderberg
Lost castle on Holderberg, few wall remains survive.
Stählibuckturm
Observation tower in Switzerland, offering panoramic views.
Eggholz
Nature reserve with forest and wetland habitats.
Einblicke in den Murgbogen
Viewpoint overlooking the Murg river bend.
Bleiche
Viewpoint near the Murg, formerly a bleaching meadow.
Schloss Frauenfeld🏰 castle
Castle in Frauenfeld, canton of Thurgau, Switzerland.
Sights nearby
Frequently asked questions
Does the Neuburg ruin offer a view of Lake Constance?
Yes, it is beautifully situated above Mammern with a view of the Untersee.
Is the path to the ruin child-friendly?
Yes, it is an easy hike through the forest.
When was Neuburg destroyed?
It was abandoned in the 15th century and then fell into decay.
Are there BBQ spots there?
Yes, there is a well-maintained fire pit near the ruin.
Is there an admission fee?
No, the ruin is freely accessible.
Neuburg Castle Ruins: where is it located?
Neuburg Castle Ruins is located in Switzerland.
Neuburg Castle Ruins: what is there to see?
Highlights include Rugelreise Kugelautomat, Burgstelle Murkhart, art-insect.
Neuburg Castle Ruins: when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Neuburg Castle Ruins: why is it worth visiting?
The Neuburg Castle ruins tower high above the Untersee near Mammern in the Canton of Thurgau and are considered the largest castle ruins in the canton.
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